Laughter on the 23rd Floor (2001)

Inspired by Neil Simon's early career experience as a junior writer for Your Show of Shows, the play focuses on Sid Caesar/Jackie Gleason-like Max Prince, the star of a weekly comedy-variety show circa 1953, and his staff, including Simon's alter-ego Lucas Brickman, who maintains a running commentary on the writing, fighting, and wacky antics which take place in the writers' room

Unfortunately the movie Laughter on the 23rd Floor is not yet available on HBO Max.